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If wet clothes are hung on the line to dry at 10 degrees fahrenheit on a sunny say in January, they will first become stiff and then eventually dry. The first process is called freezing. During the second process, called sublimation, ice goes directly to water vapor. Write the equations for these two changes which wter, H2O, undergoes. Indicate the state of products and reactants.
at 0.967 atm the height of mercury in a barometer is 0.735 m. if the mercury were replaced with water what height of
Given: 0.250L of 0.575M Pb(NO3)2 solution mixed with 0.300L of 0.822M NaOH at 25c. Determine if a precipitate forms. Calculated the concentrations to be 0.144 mol of Pb(NO3)2 and 0.247 mol of NaOH. What do I do from here
Determine the mass of Al is needed to combine with 3.077 kilo grams of Ammonium per chlorate NH 4 ClO 4 for this reaction? express your answer in units of g
A 50.0-mL sample of 2.0 x 10-4 M CuNO3 is added to 50.0 mL of 4.0 M NaCN. Cu+ reacts with CN- to form the complex ion [Cu(CN)3]^2: [Cu(CN)3]^2- Cu+ (+) 3CN- K = 1.0 x 10^-9
when ethane c2h6 reacts with chlorine cl2 the main product is c2h5cl but other products containing cl chlorine such as
Microwave ovens emit microwave energy with a wavelength of 12.6 cm. What is the energy of exactly one photon of this microwave radiation
The air in the ducts flows at 5.0 m/s, find the width of the ducts. (b) How big would the ducts need to be if the owner wanted the air to flow at 1.0 m/s
If an analytical method has been developed and the retention time for a particular anabolic steroid has been determined, how might you use this method to determine the possibility of the use of anabolic steroids by an athlete.
for the isoelectronic series vco6- crco6 and mnco6 would you expect the energy of metal to ligand charge-transfer bands
The crystal structure of an element X can be described as follows: X atoms form a face-centred cubic lattice with an edge length of 356.7 pm. In addition, there are X atoms occupying every other tetrahedral site in the face-centred cubic lattice.
what volume in l of propane and water vapour must react to form 8,96 L of hydrogen according to the equation of the same temperature and pressure
If 393.5 kJ of heat is released per mole of graphite and T increases 2.613 K, what is the heat capacity of the bomb calorimeter
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